REFLD002
REFLD002 - Reference Design
Laser Driver Reference Design with GaN HEMT for High-Resolution LiDAR
The range of uses for LiDAR sensors is expanding to include not only autonomous driving, but also applications in the industrial and infrastructure fields. LiDAR sensors are required to have longer sensing distance and higher resolution, and in addition to improving the characteristics of the laser diode, it is necessary to drive the laser diode at higher speeds and power. ROHM offers a lineup of 905nm high power narrow emission width laser diodes. (RLD90QZWx Series) Reference designs are available that includes EcoGAN™, a next-generation device capable of high-speed drive, along with a high-speed gate driver for GaN HEMTs that contribute to improved LiDAR sensor characteristics (distance and resolution) .
- Enables high-speed driving of laser diodes - a key device in LiDAR applications
- Includes next-gen EcoGaN™ devices
- Built-in high-speed gate driver for GaN HEMTs (BD2311NVX-C)
- Two circuit types: square wave and resonant
Specification
| Onboard Devices | Laser Diode | RLD90QZW8 | RLD90QZW3 |
| EcoGaN™ | GNE1040TB | ||
| Gate Driver | BD2311NVX-LB | ||
| Reverse Current Protection Diode | RF05VAM2S | ||
| Shunt Resistor | LTR10 Series | ||
REFLD002-1 Square wave Product in refDesign and related contents
| Product name | Status | Datasheet | Specification | Sample |
|---|---|---|---|---|
| RLD90QZW8 | under development |  |
905nm 120W Narrow Emission Width Laser Diode | Contact Us |
| GNE1040TB | Recommended Products | |
EcoGaN™ GaN HEMT 150V, 40mΩ | Contact Us |
| BD2311NVX-LB | Recommended Products | |
GaN HEMT High-Speed Driver IC | Buy |
| RF05VAM2S | Recommended Products | |
Reverse Current Protection Fast Recovery Diode | Buy |
| LTR10 | Recommended Products | |
Current Sense Shunt Resistor | Buy |
REFLD002-2 Resonant Product in refDesign and related contents
| Product name | Status | Datasheet | Specification | Sample |
|---|---|---|---|---|
| RLD90QZW3 | Recommended Products | |
905nm 75W Narrow Emission Width Laser Diode | Buy |
| GNE1040TB | Recommended Products | |
EcoGaN™ GaN HEMT 150V, 40mΩ | Contact Us |
| BD2311NVX-LB | Recommended Products | |
GaN HEMT High-Speed Driver IC | Buy |
| RF05VAM2S | Recommended Products | |
Reverse Current Protection Fast Recovery Diode | Buy |
| LTR10 | Recommended Products | |
Current Sense Shunt Resistor | Buy |
*Application notes, model libraries, PCB libraries, and other contents can be downloaded from the individual product pages
Design Resources
- REFLD002-1
- Brief
- Block Diagram
- Schematic
- BOM
- Layout (PDF)
- Layout (CAD Data)
- REFLD002-2
- Brief
- Block Diagram
- Schematic
- BOM
- Layout (PDF)
- Layout (CAD Data)
Specifications
| Board Number | Input volatage (Laser Diode Drive) | Input volatage (Gate Driver) | Laser power | Switching Frequency | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| REFLD002-1 | ~60 V | 5V | 905nm, 120W | 0.1 to 0.5kHz | |||||||||||
| REFLD002-2 | ~120 V | 5V | 905nm, 75W | 0.1 to 100kHz |
Distribution Inventory
| Board Number | Distributor | Quantity Available |
|---|
Key Components
| Board Number | Part Number | Product Category | Datasheet | Status | SPICE | LTspice® ? | Thermal Model | Symbol & Footprint | 3D STEP | Samacsys ECAD Library | Calc Tool | ROHM Solution Simulator |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| REFLD002-1 | LTR100JZPFL | Current Detection Resistors | - | Recommended | - | - | ||||||
| REFLD002-1 | LTR100JZPJL | Current Detection Resistors | - | Recommended | - | - | ||||||
| REFLD002-1 | LTR100LJZPFS | Current Detection Resistors | - | Recommended | - | - | ||||||
| REFLD002-1 | LTR100LJZPFU | Current Detection Resistors | - | Recommended | - | - | ||||||
| REFLD002-1 | LTR100LJZPJS | Current Detection Resistors | - | Recommended | - | - | ||||||
| REFLD002-1 | LTR100LJZPJU | Current Detection Resistors | - | Recommended | - | - | ||||||
| REFLD002-1 | LTR10LEZPDL | Current Detection Resistors | - | Recommended | - | - | ||||||
| REFLD002-1 | LTR10LEZPFS | Current Detection Resistors | - | Recommended | - | - | ||||||
| REFLD002-1 | LTR10LEZPJL | Current Detection Resistors | - | Recommended | - | - | ||||||
| REFLD002-1 | LTR10LEZPJS | Current Detection Resistors | - | Recommended | - | - | ||||||
| REFLD002-1 | RLD90QZW8 | High Output Laser Diodes | - | Under Development | - | Solution Simulator | ||||||
| REFLD002-1 | GNE1040TB | GaN HEMT | - | Recommended | - | |||||||
| REFLD002-1 | BD2311NVX-LB | Gate Drivers | - | Recommended | - | |||||||
| REFLD002-1 | RF05VAM2S | Fast Recovery Diodes | - | Recommended | - | - | - | - | - | |||
| REFLD002-1 | LTR10LEZPFL | Current Detection Resistors | - | Recommended | - | - | ||||||
| REFLD002-1 | BD2311NVX-C | Gate Drivers | - | Recommended | - | |||||||
| REFLD002-2 | BU21077MUV | Capacitive Switch Control ICs | - | Last Time Buy | - | - | ||||||
| REFLD002-2 | RLD90QZW3 | High Output Laser Diodes | - | Recommended | - | Solution Simulator | ||||||
| REFLD002-2 | LTR100JZPFL | Current Detection Resistors | - | Recommended | - | - | ||||||
| REFLD002-2 | LTR100JZPJL | Current Detection Resistors | - | Recommended | - | - | ||||||
| REFLD002-2 | LTR100LJZPFS | Current Detection Resistors | - | Recommended | - | - | ||||||
| REFLD002-2 | LTR100LJZPFU | Current Detection Resistors | - | Recommended | - | - | ||||||
| REFLD002-2 | LTR100LJZPJS | Current Detection Resistors | - | Recommended | - | - | ||||||
| REFLD002-2 | LTR100LJZPJU | Current Detection Resistors | - | Recommended | - | - | ||||||
| REFLD002-2 | LTR10LEZPDL | Current Detection Resistors | - | Recommended | - | - | ||||||
| REFLD002-2 | LTR10LEZPFS | Current Detection Resistors | - | Recommended | - | - | ||||||
| REFLD002-2 | LTR10LEZPJL | Current Detection Resistors | - | Recommended | - | - | ||||||
| REFLD002-2 | LTR10LEZPJS | Current Detection Resistors | - | Recommended | - | - | ||||||
| REFLD002-2 | RLD90QZW8 | High Output Laser Diodes | - | Under Development | - | Solution Simulator | ||||||
| REFLD002-2 | GNE1040TB | GaN HEMT | - | Recommended | - | |||||||
| REFLD002-2 | BD2311NVX-LB | Gate Drivers | - | Recommended | - | |||||||
| REFLD002-2 | RF05VAM2S | Fast Recovery Diodes | - | Recommended | - | - | - | - | - | |||
| REFLD002-2 | LTR10LEZPFL | Current Detection Resistors | - | Recommended | - | - | ||||||
| REFLD002-2 | BD2311NVX-C | Gate Drivers | - | Recommended | - |